Insulating your attic walls ... insulation as long as the old insulation material is in good condition and not compressed. Mixing types, like adding fiberglass batts over loose-fill insulation or ...
Yes, you can use blown-in insulation or injection foam for your wall joist space or spray foam insulation for the roof space. These methods allow you to improve thermal performance without rafter ...
This is a good idea because we use a modern higher grade of polystyrene which when installed could double the heat retention of your wall. By topping up the existing insulation it also means that any ...